diff --git a/frontend/index.html b/frontend/index.html
index dd430f1..bff6379 100644
--- a/frontend/index.html
+++ b/frontend/index.html
@@ -18,7 +18,7 @@
 <div class="max-w-7xl mx-auto px-6 py-2">
 
 	<div class="flex items-center justify-between mb-3">
-		<h1 class="text-2xl font-bold text-heading">OTAMan <span id="slogan" class="text-sm font-normal text-gray-500 dark:text-slate-400 ml-2" data-l10n="SIM OTA with a Human Face">SIM OTA with a Human Face</span> <span class="text-xs text-gray-400 dark:text-slate-500 ml-1">v2.1.12</span></h1>
+		<h1 class="text-2xl font-bold text-heading">OTAMan <span id="slogan" class="text-sm font-normal text-gray-500 dark:text-slate-400 ml-2" data-l10n="SIM OTA with a Human Face">SIM OTA with a Human Face</span> <span class="text-xs text-gray-400 dark:text-slate-500 ml-1">v2.1.13</span></h1>
 		<div class="flex items-center gap-4">
 			<span id="state-indicator" class="flex items-center select-none" style="cursor:default" title="Connecting...">
 				<span id="state-indicator-dot" class="text-xs text-gray-400" title="Connecting...">●</span>
@@ -1006,6 +1006,15 @@
 					<label class="block mb-1 text-xs font-medium text-gray-600 dark:text-slate-400" data-l10n="SD AID (empty = ISD)">SD AID (empty = ISD)</label>
 					<input id="scp81-cap-sd" placeholder="A000000003000000" maxlength="32" class="w-56 font-mono border border-gray-300 dark:border-slate-600 text-sm rounded px-2 py-1.5 dark:bg-slate-800">
 				</div>
+				<div>
+					<label class="block mb-1 text-xs font-medium text-gray-600 dark:text-slate-400" data-l10n="Install parameters (hex, optional)">Install parameters (hex, optional)</label>
+					<input id="scp81-cap-params" placeholder="C900" class="w-40 font-mono border border-gray-300 dark:border-slate-600 text-sm rounded px-2 py-1.5 dark:bg-slate-800">
+				</div>
+				<div>
+					<label class="block mb-1 text-xs font-medium text-gray-600 dark:text-slate-400" data-l10n="STK parameters (hex, optional)">STK parameters (hex, optional)</label>
+					<input id="scp81-cap-stk" placeholder="CA TLV" class="w-40 font-mono border border-gray-300 dark:border-slate-600 text-sm rounded px-2 py-1.5 dark:bg-slate-800">
+				</div>
+				<label class="flex items-center gap-2 text-xs text-gray-600 dark:text-slate-400"><input type="checkbox" id="scp81-cap-makesel" checked> <span data-l10n="Make selectable">Make selectable</span></label>
 				<button data-needs="server" onclick="scp81QueueCapInstall()" class="px-3 py-1.5 text-sm rounded bg-emerald-600 text-white hover:bg-emerald-700 disabled:opacity-40 disabled:cursor-not-allowed" data-l10n="Queue CAP install">Queue CAP install</button>
 			</div>
 			<div id="scp81-msg" class="text-xs mt-2 hidden"></div>
@@ -7402,6 +7411,9 @@ async function scp81QueueCapInstall() {
 		const resp = await pysimFetch('/api/scp81/ram-install', {
 			cap_hex: capHex,
 			sd_aid: (document.getElementById('scp81-cap-sd').value || '').replace(/[^0-9a-fA-F]/g, ''),
+			install_params: (document.getElementById('scp81-cap-params').value || '').replace(/[^0-9a-fA-F]/g, ''),
+			stk_params: (document.getElementById('scp81-cap-stk').value || '').replace(/[^0-9a-fA-F]/g, ''),
+			make_selectable: document.getElementById('scp81-cap-makesel').checked,
 		});
 		if (resp.ok) {
 			scp81Msg(t('Queued') + ': ' + resp.apdus + ' ' + t('APDUs') + ' (' +
@@ -9890,6 +9902,9 @@ const LANG_RU = {
 	'Select a card preset with keys first (RAM subtab → Card preset)': 'Сначала выберите пресет карты с ключами (RAM → Пресет карты)',
 	'Select a .cap file': 'Выберите файл .cap',
 	'RAM install (CAP file)': 'RAM-установка (файл CAP)',
+	'Install parameters (hex, optional)': 'Параметры установки (hex, опционально)',
+	'STK parameters (hex, optional)': 'STK-параметры (hex, опционально)',
+	'Make selectable': 'Сделать выбираемым',
 	'Queue CAP install': 'Поставить установку CAP в очередь',
 	'Queued': 'В очереди',
 	'APDUs': 'APDU',
diff --git a/frontend/sw.js b/frontend/sw.js
index 2ca4573..e7db97c 100644
--- a/frontend/sw.js
+++ b/frontend/sw.js
@@ -1,4 +1,4 @@
-const CACHE = 'otaman-v149';
+const CACHE = 'otaman-v150';
 const URLS = [
   'index.html',
   'help.html',
diff --git a/pyproject.toml b/pyproject.toml
index 3520a70..c72ebdd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pysim-otaman-server"
-version = "2.1.12"
+version = "2.1.13"
 description = "HTTP REST server wrapping pysim for the OTAMan PWA"
 requires-python = ">=3.8"
 # pysim is a git-only dependency installed explicitly by setup.bat/setup.sh.
diff --git a/pysim_otaman_server/server.py b/pysim_otaman_server/server.py
index bcf25b5..0e11297 100644
--- a/pysim_otaman_server/server.py
+++ b/pysim_otaman_server/server.py
@@ -21,7 +21,7 @@ from osmocom.construct import GsmOrUcs2Adapter
 from osmocom.tlv import BER_TLV_IE
 
 
-VERSION = '2.1.12'
+VERSION = '2.1.13'
 
 MAX_ENVELOPE_SEGMENTS = 5  # max SMS segments for outgoing C-APDU in ENVELOPE